Mold for building-blocks.



W. A. BUEC K.

MOLD FOB BUILDING BLOCKS.

APPLIUATION FILED AUG.9,1907.

904,927. Patented Nov. 24, 1908.

2 SHEBTSSHBET 1.

Suva nl'oz athowmqd W. A. BOEUK.

MOLD FOR BUILDING BLGOKS.

APPLIOATION FILED AUG. 9, 1907.

904,927. Patented Nov. 24. 1908 2 SHEETS-SHEET 2.

anuanloz attuned? UNITED sTA'rns ATENT OFFICE.

WILLIAM A. BOECK, OF SOUTH OMAHA, NEBRASI\'.\.

MOLD FOR BUILDING-B LOCKS vSpecification of Letters Patent.

Patented Nov. 251, 1908.

Application filed August 9, 1907. Serial No. 387,866.

. strong, durable and thoroughly e eien't"device of this character bv means of which ar- -tificial stone building bricks or blocks may be manufactured and laid into a wall at one operation of the mold.-

further object of the invention is to provide a mold for forming the wall withvertic'al air passages or fines, the blocks constituting the wall being constructed in sections spaced apart by tie rods.

.A further object is to provide a.mold ineludin spaced transverse supporting members at aptedto rest on the wall and provided with means for locking the side walls and core member of the mold in sition thereon, said supporting members being pivotally united by a connecting link whereby said supporting members may be simultaneously released from engagement with the side walls so as to permit the removal of the latter.

- A further object is to irovide a novel form of (0113 member for orming vertical air passages or fines in the several blocks comprising the wall. and means for locking the core member in engagement with the transverse su pporting members.

A further object is to provide a mold having interchangeable end walls to permit the formation of corner blocks. said mold being provided with a removable hopper folretainiug the side walls in engagement with the end walls of the mold.

'A still further object of the invention is to generally improve this class of devices so as to increase their utility. durability and eiliciency.

. Further objects and advantages will appear" in the following description, it being understood that. various changes in form. proportions and minor details of constructipn may be resorted to within the scope of the appended claims.

In theitaccompanying drawings forming a part of this specification: Figure 1 is a side A. Boson,-

elevation of a mold constructed in accordance with my invention showing the same in position on a wall. Fig. 2 is a top plan view partly in section of the same. Fig. 3 is a l transverse sectional view taken on the line I 33 of Fig. 1. Fig. 4 is a longitudinal sectional view showin the mold in position for making a corner b ock. Fig. 5 is a transverse sectional view on the line 5-5 of Fig. 1. Fig. 6 is a perspective view of one of the pivoted core braces detached.

Similar numerals of reference indicate corresponding parts in all of the figures of the drawings' -The improved mold forming the subject matter of the present invention is princi pally designed for manufacturing and laying.artificial stone bricks or blocks into a wall or similar structure and by way of illustration is. shown in position on a wall in which 5 desi nates the side blocks and t' the corner bloc s.-

members 7 preferably cylindrical in form showmand adapted to rest on the round and upon the upper longitudinal e ges of the blocks in succeeding courses during the erection of the wall.

'The su porting members 7 are provided with a p urality of spaced circumferential seating recesses 8 and 9, the seating recesses 9 brain adapted to receive the lower longitudina edges of the side walls or plates 10' while the inner seating recesses are designed to receive the plates 11 formiii the si e walls of the core member, there eing one or more auxiliary seating recesses 12 formed in the snpportin members so that the side walls may. be adjusted laterally to permit the formatipn of blocks of diflerent thicknesses. 1

1 The up )osite ends of the supporting members at t e recesses 9 and 12am cut awa at 13 to form smooth bearin supfaces so that when the supporting mem )ers are partially rotated the cut away portions 13 will be positioned at the lower ion 'tudinal edges of the side walls of the mol and in which position the side walls may be adjusted laterally on the smooth bearing surface 13 to permit the removal of the same when it is desired to construct a succeeding course in hereinafter.

The inner ends of the supp rting memi bars are provided with terminal crank arms the wall, as willbe more fully explained porting members so that said longitudinal edges will engage the upper fa ees of the blocks in the lower course and thus prevent the escape of cement, concrete or other plastic material when molding the bricks or blocks on the wall.

Extending inwardly from the side walls 10 and 11 are ears or lugs .17 which bear against the end walls 18 and 19 of the mold, as shown, and serve to assist in reventing accidental displacement of e en walls.

Surrounding the upper e ges of the side and end walls of the mold is a laterally extendin flange which constitutes a ho per 20 an serves to prevent spreading o the several walls of the mold when tamping the cement or other material in the molding com artment. 1

T e hopper 20 is detachably secured to the walls of the mold and is supported in osition thereon by means of one or more ugs or cars 21 extending laterally from some of the walls, as shown. A

One end of the hopper 20 is preferably cut away so as to prevent the flange from hearing against the adjacent brick or block, the flanges of the hopper at the cut away ortions being connected b the transverse ar 22 the 0 posite ends 0 -which are providedlaterally extending attaching cars 23 for engagement with the hopper as shown. The core member. includes a top section 24 provided with spaced depending flan as 25 which bear against the ad acent side wa or plates 11 and serve to prevent the cement or concrete from entering the space between the lates when molding the bricks or blocks. ounted for rotation in the top plate 24 of the coreare spaced rods or shafts 26 having their u -per ends rovided with transverse bars 2? connecte by parallel links 28 whereby when a lon 'tudinal pull is exerted on either of the lini s 28 the vertical rods ma be partially rotated.

gacured to the rods 26 beneath the cover 24 of the core member are clamping bars 29 havin their opposite ends curve or rounded and a apted to clamp the side plates 11 of the core member in enga ment with the remining flanges 25' when t e. links 28 are actuated t ereby to lock the upper ends of the lates 11 in engagement with said flanges L imilar clampin ars 30 are secured to the lower or free enis of the shaft 26 for pressing the lower-ends of the plate 11 in engagement with the'adjacentsealing recesses 8 in the transverse supporting members. I

Pivotallyconnected at 31 to the end walls hers 7 so as tocause the smoot 18 are laterally extending wings 32 having their free ends .ofl set at 33 for en agement with the adjacent vertical edges oi the side plates 11 so that when the core member is positioned within the mold with the plates 11 of the core member in engagement with ofl set ends of wings 32 a hollow block will be formed consisting of spaced sections 34 and 35 having an air passage between them so as to permit the passage of air vertically of the wall. 7

As a means for preventing accidental displacement of the wings 32 during the formation of-the block the opposite ends of the core member are provided with yieldably supported caps or plates 36 having spaced depending flanges 37 for engagement with .the upper ends of the pivoted wings 32.

The caps or plates 36 are connected with the cover or top plate 24 of the core member by means pf spring bars 38 one end of each 01 which s,r1gidly secured to the plate 24 while the opposite end thereof is bent laterally for attachment to the adjacent cap pl a; 36.

ecured tothe bottom of each ca plate is a block 39 having its opposite en s spaced laterally from the flanges 37 to permit the introduction of the up er edges of the wing lates 32 whereby said wing plates may be ocked in vertical alinement with the side plates 11 of the core member.'

In erectin the wall the supporting members 7 are rst placed in position on the ground with the side walls 10 and 11 engag- 100 mg the adjacent seating recesses 9 and with the lower edges of the side plates 11 of the core enga 'ng the seating recesses 8 after whichthe opper 20 is placed in position on the side and end walls of the mold and the 105 links or rods 28 adjusted so as to cause the clamping members 27 and 30 to force the side plates 11 of the core member in enga ement with the flanges 35 and recesses 8, as st shown in Fig. 2 of the drawings.

The cement, concrete or other plastic material is then introduced in the molding compa'rtments and thoroughly tamped after which the 01 ping members 29 and 30 are released and the cover plate 24 of the core 5 member together with the cap plates 36 lifted bodily from -the mold.

The hopper 28 is then removed and a longltudina pull exerted on the connecting link 15 which rotates the sup orting memno bearing surfaces 13 to enga e the walls of the notches 16 in the side p ates of the mold thus'per- ,mitting the side walls to be withdrawn laterally from engagement with the supporting I25 Ihembers. The supporting members are then taken out of the wall so that the same may be re-used, the openings in the walls formed by the sup orti v members being subsequently fille wit cement.

A fter the first course is formed the. supportingmembers 7 are positioned on the upper loi'igitudinal edges of the blocks forming the lower or finished course and the side walls and core member spaced in position on said supporting members and locked in engagement therewith in the manner before started, this operation being continued until the several courses comprising the wall are completed. v

After each course of the wall is finished suitable tie rods are placed in position on thc'upper longitudinal edges of the blocks of each course with thei-r mtermediate portions spanning the intermediate air chamber sothat when the succeeding course of'bloclrs isplabed in position the tie rods 40 Wlll form a firm bond between the sections of the 2 several blocks comprisin the wall.

In older to varythe t ickness'of the wall it is-merely necessary to adjust the side walls 01: plates of theinold laterally of the supplurality of seating recesses so that the porting members and introduce the lower edgenthereof into the desired seating recesses,it being of course understood that the supporting members will be formed with It} war may :befmade of any desired thickness. It will also be understood, that when the mold is adjusted to vary the thickness of the wall wider end plates will be used and the con nectin bar 29. of the hop .r will also be reand suitable cnd walls 41 iaving smooth interior'and exterior faces substituted in place of the end walls'18. The core member is also shortened which result is accom lished by detaching the bars 28 carrying tie cap plates 36 from the top 24 of the'core member and placing in position on said core member suitable end plates 42. which plates are spaced inwardly from theadjacent end wallsll so as to render the block closed at each end. 1

in order to form a source of communication between the vertical air line 42 of the :corner blocks and the air space in the side blocks a suitable spacing block formed of wood or other. suitable material is prefer ably interposed between the core member and one of the adjacent side walls of the mold so to form the corner block with a contracted noel; 13 which permits the free circulation of ,1 air from the r- IHIIIlJBIS of the blocks on one side of the wall thrm'igli the corner blocks to the. air s aces of the block on the adjacent side of t e wall.

If desired the side blocks; may be formed with joist receiving openingsby inserting a similar block hr blocks between the side walls of the mold and core member. in the form of the device shown in Fig. 2 of the drawings, as will be readily understood.

In order to assist in preventing inward measure on the side walls of the core mem bers said members are preferably provided with ivoted transverse braces each preferably t iirmed in two sections 44 and t!) one of which is provided with a lateral flange 46 for attachmentto the adjacent side wall of the core member while the section is pivotally connected with the section 44 and is provided with an inclined or rounded-tenminal adapted to beswung downwardly in engagement with the opposite side wall of the core member, as best shown in Figs. 3, 4 and 6 of the drawings. f

Vlhile the device is principally desi ued for manufacturing and laying artiilcial stone building blocks in a WalLduring the erection of the same itis obvious that the blocks may be formed separately and subsequently laid into a wall without departin from the s irit of the invention. It will also be un erstood that the molds may be 'used either with or without. the core members and that theseveral blocks comprising the wall may be formedwith an ornamental face in imitation of chipped or cut rock by inserting a suitable die plate in the mold.

From the foregoing description, it is thought that the construction and operation oi the device will .be readily understood by those skilled in the art and further description thereof is deemed unnecessary.

Having thus described the invention what is claimed is:

1. A mold including rotatable supporting members, side walls engaging the supporting members. a core member interposed between the side walls. and a link connection between the sup orting members for rotatin the latter t ereby to release the side we ls. l

2. A mold including rotatable supporting members provided with spaced seating recesses, side walls engaging the seating rccesses and sup orting members. a core member interpose between the side walls. and means for simultaneously rotating the supporting members thereby to release the side walls.

3. A mold including a plurality of spaced rotatable supporting members having seating recesses formed therein, there being cut away portions disposed at some of the re CGSSQSySldP walls seated in said recesses. a

core. member interposed between the side walls, and means for'simultaneously rot'aling'the supporting members to present the cut away portions to the end walls thereby to permit the release of the end walls.

' 4. A mold including spaced rotatable sup lit) porting members provided with terminal 136 side walls and provided with terminal cap bers, end walls engaging the side walls,

and intermediate seating recesses, sidewalls enga ing the'terminal seating recesses, a core mem er seated in the intermediate recesses, and a link connection between the su porting members for rotating the latter t ereby to release the side walls.

5. A mold including rotatable supportin members having seating recesses forme therein and provided with terminal crank arms, side walls engaging some of the recesses, a core member interposed between the side walls, a hopper en t gmg the side walls, and a link connecting t e crank arms of the supporting members for rotating the latter thereby to release the side walls.

6. A mold including spaced rotatable supporting inernbershaving a plurality of seating recesses -formed therein, side walls engaging some of the seatin recesses, end walls provided with pivote wings, a core member bearing against the sup ortiiig members and engaging the wings, an means for rotating the supporting members thereby to release the side walls of the mold. I

7. A mold including rotatable suporting members, side' walls engaging the members, t

end walls connected with the side walls, a hopper surrounding the walls of the mold, wings extending laterally from the end walls, and a core member interposed between the plates adapted to engage the wings.

8. A mold including rotatable sup rting members, side Walls sup rted by sai memwings extending inwardly from the end walls, a core member including spaced side plates engagin the wings, and a cover forming a part of t e core member and providedw with means for engagement with the wings.

9. A mold including spaced rotatable supporting members having terminal and intermediate seating recesses formed therein, side walls engagi the terminal recesses, end walls connect with the side walls, ivoted l win s ext-ending; inwardly from t e end wal s, a core member including side plates f the lower longitudinal edges of which are seated in the intermediate recesses offthe sup portingmcmbers, a cover forming a. part of the core member and provided with laterally and means carriedby the cover for clamping 1 the side plates of the core member in engagement with the thin .s. y

10. A mold inc uding spaced rotatable supporting members provided with terminal crank arms, side walls engaging'the supporting members, end walls operatively connected with the side walls, a hopper surrounding the walls of the mold, a core interposed between the side walls, means carried by the supporting members for engagement withthe 'sidewalls, and means connecting the sup-i porting arms for simultaneously releasin the locking means from engagement wit the sidewalls.

11. A. mold including spaced rotatable supporting members, s1de walls bearin against the supporting members, ends wa s operatively connected with the side walls and rovided with pivoted win a core member interposed between the si e walls and provided with means for en agement with the wings, and means carrie by the core memher for locking the latter in engagement with the supportin members.

12. A mol including spaced rotatable supporting members having seating recesses formed therein, side walls having notches formed in their lower longitudinal edges and engagin the walls of the seating recesses, end wal s connecting the side walls, a removable hopper surrounding the walls of the mold, a core member interposed between the side walls and s seed from the latter to form continuous mo ding compartments, and a Lipk connection between the supporting mem- 13. A mold including spaced rotatable supporting members, s1de walls en gin the su porting members and rovide witfi latera ly extending lugs, en walls operativelyconnected with the side walls,\a re: movable hop er bearin against the lugs, wings pivotal y mount on theend walls, a core member interposed between the side walls and forming continuous moldin compartments, and yieldably support caps carried by the core member and engaging the wings.

14. A mold including spaced rotatable supporting members, side walls engaging the supporting members, end walls operatively connected with the side wall, a hopper surrounding the walls of the mold, wings extending within the mold and pivotallyhconnected with the end walls thereof, said wings having their terminal portions off set, aecore member including, side plates for engagement with the off set ends of the pivoted wings, a cover. forming the top of the core member and provided with depending flanges, cap pieces carried by the cover and engaging the wings, and means carried by the cover and engaging the side walls of the core member for locking the latter in en' and intermediate seating recesses, side walls engaging the terminal seating recesses, end walls operatively connected with the side -walls, a core member interposed between the side walls and including spaced plates hav-i ing their lower ends seated in the intermediate rece ses. a cover forming a part of the mold. rod journaled in the cover and prowithclamping members, 'and links connecting the upper ends of said rods for provided with depending flanges, rods jourt-ot'ating said clamping members thereby to ment with the adjacent seating recesses.

16. A mold including side and end walls, laterally extending wings )ivotally eonneeted with the em walls, a core member interposed between t 1e side 'tlllH and forming eoiltihttotts molding connartments, and yieldable top plates earri member and engaging the wings.

17. A mold inelndin side walls, end walls operativel connected with the side walls, a

core mem e1 interposed between the side walls and formed with spaced plates, :1 eovet forming thetop of the core member and i look the side by the core f hauled i the cover and having their upper lock the side plates 01 the mold in engageends ii-I. .'ided with transverse be rs and their low-Zr enth formed with spm'ed clamping niembeis, and links mnneetmg' the bars for rotnting'the elamping members thereby to dates of the core member in engagement with the flanges.

In testimony that l r-laim the foregoing- 21 my own', I have hereto :tfiixed my signature in the presence of two witnesses.

WILLIAM A. BOEClx'.

\Vitnesses C. I. 12151;, A.- A. W'mon'r. 

